A 2010 study of mitochondrial DNA of the spoonbills by Chesser and colleagues found that the roseate and yellow-billed spoonbills were each other's closest relatives, and the two were descended from an early offshoot from the ancestors of the other four spoonbill species.
The Yellow Book standards help auditors hold the organizations they audit accountable. GAGAS contains requirements relating to ethics, independence, auditorsâ professional judgment and competence, quality control, performance of the audit, and reporting.
The Bluebook, formally titled The Bluebook: A Uniform System of Citation, is the style manual for citing to legal documents within the United States. It is now in its 20th edition, more than an inch thick, and consists of over 500 pages of guidance on legal citation.